Analysis Of Temporal And Spatial Patterns Of Urban Interaction In Heilongjiang Province And Its Promotion Strategy

The study of urban spatial pattern is beneficial to urban construction because it can well understand the development between cities,promote the coordinated development between regions and the formation of urban group units between cities and cities.Based on the law of universal gravitation,this paper constructs and introduces the gravity model formula,the fracture point formula and the gravitational space influence range formula,and then uses ArcGIS and UCINET6(social network analysis)to study the evolution law of urban interaction in Heilongjiang province based on the space-time angle.For the analysis,the relevant data from 2012 to 2016 were selected on the index.The research selected 12 prefecture-level cities in Heilongjiang Province,one region(the following studies are collectively referred to as13 prefecture-level cities)and 63 county-level cities.Gravity model formula is used to calculate the gravitational value of inter-city space between 13 prefecture-level cities and 63 county-level cities,and the judgment of the midpoint of urban spatial interaction gravitation is determined by using the breakpoint formula.The party with strong gravitation between the two cities finally uses the gravitational space influence range formula to define the influence range of some prefecture-level cities.Since the spatial attraction of county-level cities is generally weak,only the county-level cities are inter-city.The calculation of the spatial gravitational value.The conclusions are as follows: First,the development of cities in Heilongjiang Province is unbalanced.From2012 to 2016,Harbin has been the strongest point of regional external radiation.Therefore,the status of the central city of Harbin is basically determined.Harbin is the only core city in Heilongjiang Province.Secondly,Daqing City,Qiqihar City,Suihua City,Mudanjiang City and Jiamusi City are the most promising node cities in the region,which have a strong influence on nearby cities.In addition,marginal cities and resource-based cities are developing slowly,prefecture-level cities.The development presents a spatial pattern of "north weak south strong";For the county-level city research,the development of county-level cities is generally slow.Most of the county-level cities have lower comprehensive quality,and the spatial interaction ofcities is not obvious.The county-level cities in Heilongjiang Province are “U” shaped.In the spatial pattern,the central county-level cities are lagging behind the peripheral cities.Finally,it proposes a promotion strategy for the formation of urban spatial pattern in Heilongjiang Province,strengthens the close relationship between cities in the development process,enhances the relationship between cities and the coordination of development between cities.Harbin should actively play the role of its central city.Inter-regional development continues to be promoted.Node cities should make good relations with each other and exert their radiative effects in the region.Some cities should also carry out group-based development,which is conducive to the overall coordination and stability between regions and breaks the uneven development between cities..Through the study of this article,it is helpful to promote the development of cities in Heilongjiang Province.